package com.kellyfeng.frame4j.util;

import javax.swing.plaf.basic.DefaultMenuLayout;

/**
 * @author Administrator
 *转型操作工具集
 */
public final class CastUtil {
	/**
	 * @param obj
	 * @return 
	 * 转为String
	 */
	public static String castString(Object obj){
		return CastUtil.castString(obj, "");
	}
	/**
	 * @param obj
	 * @param defaultValue
	 * @return 
	 * 转为String(提供默认值)
	 */
	public static String castString(Object obj, String defaultValue){
		return obj != null ? String.valueOf(obj) : defaultValue;
	}
	/**
	 * @param obj
	 * @return 
	 * 转为double
	 */
	public static double castDouble(Object obj){
		return CastUtil.castDouble(obj, 0);
	}
	/**
	 * @param obj
	 * @param defaultValue
	 * @return 
	 * 转换为double(提供默认值)
	 */
	public static double castDouble(Object obj, double defaultValue){
		double doubleValue = defaultValue;
		if(obj != null){
			String strValue = castString(obj);
			if(StringUtil.isNotEmpty(strValue)){
				try{
					doubleValue = Double.parseDouble(strValue);
				}
				catch(NumberFormatException e){
					doubleValue = defaultValue;
				}
			}
		
		}
		return doubleValue;
	}
	/**
	 * @param obj
	 * @return 
	 * 转换为Long
	 */
	public static long castLong(Object obj){
		return CastUtil.castLong(obj, 0);
	}
	/**
	 * @param obj
	 * @param defaultValue
	 * @return 
	 * 转为Long(提供默认值)
	 */
	public static long castLong(Object obj, long defaultValue){
		long longValue = defaultValue;
		if(obj != null){
			String strValue = castString(obj);
			if(StringUtil.isNotEmpty(strValue)){
				try{
					longValue = Long.parseLong(strValue);
				}
				catch(NumberFormatException e){
					longValue = defaultValue;
				}
			}
		}
		return longValue;
	}
	/**
	 * @param obj
	 * @return 
	 * 转为Int
	 */
	public static int castInt(Object obj){
		return CastUtil.castInt(obj, 0);
	}
	/**
	 * @param obj
	 * @param defaultValue
	 * @return 
	 * 转为Int(提供默认值)
	 */
	public static int castInt(Object obj, int defaultValue){
		int intValue = defaultValue;
		if(obj != null){
			String strValue = castString(obj);
			if(StringUtil.isNotEmpty(strValue)){
				try{
					intValue = Integer.parseInt(strValue);
				}
				catch(NumberFormatException e){
					intValue = defaultValue;
				}
			}
		}
		return intValue;
	}
	/**
	 * @param obj
	 * @return 
	 * 转为Boolean
	 */
	public static boolean castBoolean(Object obj){
		return CastUtil.castBoolean(obj, false);
	}
	/**
	 * @param obj
	 * @param defaultValue
	 * @return 
	 * 转为Booean(提供默认值)
	 */
	public static boolean castBoolean(Object obj, boolean defaultValue){
		boolean booleanValue = defaultValue;
		if(obj != null){
			booleanValue = Boolean.parseBoolean(castString(obj));
		}
		return booleanValue;
	}
	
	
	
	
	
	
	
	
}
